Masataka Yoshida missed today’s game against the Hiroshima Carp because of problems with his lower back. He started feeling discomfort in the area during pre-game batting practice. He is considered day-to-day.
Source: Sponichi 3/22/2017
[UPDATE 3/24 @ 12:00am]
Yoshida visited a hospital in Kobe on March 23 and was diagnosed with acute muscular lower back pain. He will remain with the Ichi-gun team for the time being.
Source: Sports Hochi 3/23/2017
[UPDATE 3/28 @ 10:31pm]
Junichi Fukura told reporters today that Yoshida will not make the active roster because his lower back is still not fully healed.
Source: Daily Sports 3/28/2017
[UPDATE 4/6 @ 5:53pm]
Fukura told reporters today that Yoshida was still rehabbing his back and was not making a whole lot of progress with his recovery. He also told reporters they were having a hard time setting a timetable for his return.
Source: Nikkan Sports 4/6/2017
[UPDATE 4/22 @ 4:10pm]
Yoshida might be ready to return to the active roster some time next month.
Source: Sponichi 4/22/2017